self assembling particles

[brighteye]

scientists have made nickel particles able to assemble themself to bigger units by using surrounding material.
Dont anyone see science fiction at all, this is how the "asgards" in stargate 1 were wiped out. This is how aliens wipe out life on planets deemed to violent in "the day the earth stood still" just to name a couple.
Watch the following:
YouTube - Self-assembling magnetic "snakes"

[fluxquanta]

Hajeeze...